Improvement in steam-generators



2Sheets--Sheet 1. W. E. HAXTUN.

Steam-Generatqr.

N 159 ]78 I Patentedjan.26,1875.

% W WWW Q THE suwmcco.pum'o-uruzomm PARK Pucmw UNITED STATES PATENTOFFICE.

WILLIAM E. HAXTUN, OF KEWANEE, ILLINOIS.

IMPROVEMENT IN STEAM-GENERATORS.

Specification forming part of Letters Patent No. 159,178, dated January26, 1875; application filed September 7, 1874.

To all whom it may concern Be it known that I, WILLIAM E. HAXTUN, ofKewanee, Henry county, Illinois, have invented new and usefulImprovements in Steam- Generators, of which the following is a fulldescription, reference being had to the accompanying drawings,consisting of two sheets, in which- Figure 1 is a vertical section; Fig.3 a vertical section, showing the upright boiler and the water-jacketforming the fire-pot, as used together.

My invention relates chiefly to baseburning steam-generators; and itconsists in an improvement upon patent granted to me No. 153,486, aswill be hereinafter more fully set forth and pointed out by the claim.

In the drawings, A represents a single upright boiler. The lower parthas double walls a 12, forming a water-space, 0, between them. Each wallor sheet, a b, has a head, d d, riveted to it, the greater part of thespace be tween the two heads being a steam-chamber, 1). Within the sheetor wall a is the maga zine E, for fuel, which is introduced through thechute F. B is a water-jacket or lining, having double walls, but noheads proper, the walls being secured to a ring at the top and bottom,forming a water-space between the walls, marked f. When this part B isused WithA it forms both a fire pot or chamber and boiler, G being thefire-chamber. This part B has a door, H, to give access to the fire. Asshown, B rests on the grate; but in use I provide a ring, on which bothB and the grate e are supported, the grate being within B, so that itcan be replaced, when necessary. The boiler A is supported on B by meansof lugs or feet g, secured to the boiler A. A and B are connectedtogether by a suitable number of tubes, so that there shall be a freecirculation from one to the other. Two such tubes, h i, are shown. Anash-pit is to be provided. 0 is a horizontal boiler, of any desiredform. One or more pipes, j, form a water-communication between B and O.It forms a steam communication between A and O. l l are steam-pipes,with which heating-coils can be connected. In use it will be well tokeep the head d covered with water. All of these parts A B O are to beset and incased in brick-workin the usual manner, and so that the smokeand heat will pass from the chamber Gr up around A, and then under theboiler O, and back through the tubes to a chimney; or first through thetubes of the boiler 0, if preferred. This is the most complete form ofmy improvements, and is adapted to those cases Where a large amount ofsteam is required.

When less steam or a less expensive generator is wanted, one or twoparts of my invention may be used, as shown on Sheet 2 of the drawings,where Fig. 2 represents my single boiler, constructed as beforedescribed, supported by lugs g, which enter the brick-work. The lowerend of the boiler should be about ten or twelve inches above the grate0, giving room for the burning coal. m is the smokeoutlet. Thisfurnishes a cheap, but efficient, single-boiler base-burningsteam-generator.

Fig. 3 shows the same boiler A combined with the water-jacket B, beforedescribed, incased in brick-work, but without the horizontal boiler. Thepart B is suitably supported, as before; the two parts A B are connectedby tubes 12; A rests upon B, and the fire is within B. B serves thedouble purpose of a boiler and fire-chamber. This form furnishes moreboiler-surface than the last described, without largely increasing thecost.

In Fig. 4 is represented the water jacket or boiler B combined with ahorizontal boiler. As shown, B does not rest upon, but its lower end isabove, the grate 6, so as to form a magazine for coal to be introducedthrough a chute or door. B and O in this figure are to be securedtogether, and provided with water-tubes a, passing from one to theother. The parts are to be inclosed in brick, in such a manner as toprovide a fire-pot between the grate and magazine, with a passage forsmoke outside of B. Any space between B and O is to be carefully closedby masonry or otherwise, so as to force the heat and. smoke to passoutside of B; then they can pass under the boiler G, then through itstubes to the chimney.

In Sheet 1 I have shown all the parts of my invention combined to beused together.

furnishing a support for the boiler substan= tially as and for thepurpose specified.

2. The combination of the single upright boiler A, water jacket orboiler B, and horizontal boiler 0, all constructed and operatingsubstantially as and for the purposes specified.

WILLIAM E. HAXTUN.

Witnesses PHIL. POTTER, W. W. WILsoN.

